1040385259 has 4 divisors (see below), whose sum is σ = 1044061816. Its totient is φ = 1036708704.

The previous prime is 1040385257. The next prime is 1040385263. The reversal of 1040385259 is 9525830401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9525830401 = 54001 ⋅176401.

It is a cyclic number.

It is not a de Polignac number, because 1040385259 - 2¹ = 1040385257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040385257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837854 + ... + 1838419.

It is an arithmetic number, because the mean of its divisors is an integer number (261015454).

Almost surely, 2^1040385259 is an apocalyptic number.

1040385259 is a deficient number, since it is larger than the sum of its proper divisors (3676557).

1040385259 is an equidigital number, since it uses as much as digits as its factorization.

1040385259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676556.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1040385259 is about 32255.0036273444. The cubic root of 1040385259 is about 1013.2844937531.

The spelling of 1040385259 in words is "one billion, forty million, three hundred eighty-five thousand, two hundred fifty-nine".